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Finding the Fourth Proportional to 562,402.72, 776,115.72 and 307,753.92

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Solution

The fourth proportional to 562,402.72, 776,115.72 and 307,753.92 is: 424,700.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    562,402.72 : 776,115.72 = 307,753.92 : x
  2. Step 2: Convert to fraction form
    562,402.72/776,115.72 = 307,753.92/x
  3. Step 3: Cross multiply
    562,402.72x = 776,115.72 × 307,753.92
  4. Step 4: Simplify right side
    562,402.72x = 238,852,655,203.62
  5. Step 5: Solve for x
    x = 238,852,655,203.62/562,402.72
  6. Step 6: Final answer
    x = 424,700.39

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.